Warp-tension-regulating mechanism.



U. MORIGGL.

WARP TENSION REGULATING MECHANISM. APPLICATION FILED AUG. 13; 1912.

1,104,377, Patented July 21, 1914.

RRRRRRR 1s PITER 60., WASHINGTON, D. c.

STATES PATENT OFFTQE.

CARL MORIGGL, OF ARBON, SWITZERLAND, ASSIGNOR TO THE FIRM OF ADOLPI-I SAURER, OF ARBON, SWITZERLAND.

VTARP-TENSION-REGULATING MECHANISM.

To (ZZZ whom it may concern Be it known that I, CARL MoRIcoL, a subject of the Emperor of Austria-Hungary, and a resident of Arbon, Switzerland, have invented certain new and useful Improvements in Warp-Tension-Regulating Mechanism; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

In the devices of this kind as hitherto constructed the warp threads have been guided over a single whip, or if a separate whip has been employed for each shed of warp, the whips have been so connected that independent movement of the whips has been difficult if not impossible.

In my improved construction I provide a separate whip for each shed, and so mount the whips that they are independently movable. Preferably they are so mounted and so connected that a single spring or other tension means will hold all the sheds under equal tension and will permit of simultaneous but unequal movements so that the tension on all of the sheds will remain equal irrespective of the position or movement of the heddles.

Reference is to be had to the accompanying drawings in which similar characters of reference indicate corresponding parts throughout the several views, and in which:

Figure 1 is a side elevation of a portion of a loom with warp tension regulating mechanism constructed in accordance with my invention, a portion of the loom being in section; and Fig. 2 is a plan view of my improved mechanism and parts of the loom to which it is connected.

The ribbon loom illustrated is provided with two heddle leaves 1 and 2, which are formed by circular frames. The leaves are supported on arms 3 and 4 which turn on shafts 5 mounted concentrically with the leaves. Oscillation is imparted to the leaves by a crank-shaft 8 having cranks 21 and 22, which are connected to the leaves by pitman rods 6 and 7. The shaft 8 is rotated by any suitable means. The cranks are at 180 to each other to effect the alternating up and down movement of the leaves when forming the shed.

f and f designate the two series of warp Specification of Letters Patent.

. under the same tension at all times.

Patented July 21, 1&14.

Original application filed November 14, 1910, Serial No. 592,307. Divided and this application filed August Serial No. 714,800.

threads supported by the leaves. This portion of the structure may be varied at will so far as the invention herein claimed is concerned.

My present invention involves the warp tension regulating mechanism which is provided for each of the series of warp threads f, f. The mechanism includes two approxi-. mately rectangular frames or whips 9 and 10, mounted intermediate of their ends on a common pivot shaft 11. Preferably one of the frames is slightly smaller than the other, and they are so mounted on the pivot that the frames may swing independently of each other one moving within the other. At their lower ends the two frames are connected to the opposite ends of a lever or crosspiece 12 which latter has a spring 13 connected thereto intermediate of its ends. The tension of the spring may be regulated in any suitable manner as for instance by a rod 14 and nut 15.

The warp threads f, f may be guided through holes 16 and 17 in the upper transverse parts of the whips 9 and 10, and may be delivered to said whips after passing under shafts 11 and 18 on the frame of the machine. Pins 19 may be suspended from each warp thread between the shafts 11 and 18 and by their weight compensate the tension in the several threads. These pins may also serve as warp stops. If a thread breaks and its pin falls down the latter may be raised again by a lever 20.

It will be noted that the pivot shaft 11 which supports the two whips acts as a guide over which the threads pass to the holes 16 and 17 in theupper part of the whips and that therefore the swinging of the whips back and forth does not result in any pulling of the threads back and forth through the holes. The threads form an angle bypassing over the whips to theleaves from theshaft 11, and as the threads f, f are raised or lowered by the leaves to form theupper or lowershed, the whips rock on the shaft 11 to maintain constant the lengths of the threads from the leaves to the whips. As the two whips hold the threads under tension and the two whips are actuated by the same spring, but are capable of independent movement, it will be noted that all of the threads are held When for example the threads f are lifted from the lower into the upper shed and the threads f are at the same time lowered from the upper to the lower shed, the spring will move the upper ends of both of the whips away from the leaves and in the direction indicated by the arrow in Fig. 1, as the two sheds approach the center. As they pass the center and move away from each other, the spring will permit the movement of the upper ends of both of the whips in the opposite direction. As the two whips are capable of entirely independent movement but maintain the two sheds under equal tension irrespective of the movement of the latter, it is evident that the device may be employed in connection with symmetrical or non-symmetrical shedding means and positively insures the same tension on all sheds at the same time.

'Having thus described my invention, what I claim as new and desire to protect by Letters-Patent, is:

1. In a loom, the combination of a sheddingmechanism for forming two sheds of warp threads; independently movable whips for said sheds, tension means and mechanism connecting said tension means and said whips and permit-tine opposite movement of said whips under constant tension.

2. In a. loom, the combination of shedding mechanism for forming the sheds oi' warp threads, independently movable whips and unitary tension means tending to move both of said whips away from said shedding mechanism.

3. In a loom, the combination of shedding mechanism for forming the sheds of warp threads, independentlv movable whips, and a single tension means tending to move both otsaid whips away from said shedding mechanism, but permitting independent movement of one whip in respect to the I other.

4. In a loom, the combination of shedding mechanism for forming the sheds of warp tension means tending to move both of said whips away from said shedding mechanism, but permitting independent movement of one whip in respect to the other under the same tension.

5. In a loom, the combination of shed ding mechanism for forming two sheds of warp threads, separate whips for the two sheds, a lever havine: one end connected to one whip and the opposite end connected to the other whip, and tension means secured to said lever intermediate of the ends of the latter.

6. In a loom, the combination of shedding mechanism for forming two sheds of warp threads, separate whips for said sheds and a single means tending to move both of said whips in the same direction, but inclependentlyof each other. i

'Z. In a loom, the combination of shedding mechanism for fomning separate sheds ot' warp threads, and unitary means tending to tighten all of said sheds equally and independently.

S. In a loom, the combination of shedding mechanism for forming separate sheds of warp threads, separate whips for said sheds, and means connected to said whips and permitting; simultaneous movement of said.

whips in the same, directionunder varying tension and independent and opposite movement under constant tension.

9. In a loom, the combination of shedding mechanism for forming separate sheds otwarp threads, independently movable whips, tension means and lever mechanism connecting tension means and said whips to permit independent movement of said whips.

In testimony thatI claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

CARL MORIGGL.

Witnesses EUGENE NABEL, RANDALL ATKINSON,

Copies ofthis, patent may; be obtained for five cents each, by addressing the Commissioner of Patents,

' i Washington, D. 0. 

